/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:09:23,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:09:23,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:09:23,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:09:23,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:09:23,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:09:23,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:09:23,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:09:23,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:09:23,120 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:09:23,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:09:23,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:09:23,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:09:23,130 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:09:23,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:09:23,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:09:23,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:09:23,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:09:23,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:09:23,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:09:23,147 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:09:23,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:09:23,150 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:09:23,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:09:23,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:09:23,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:09:23,157 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:09:23,160 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:09:23,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:09:23,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:09:23,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:09:23,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:09:23,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:09:23,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:09:23,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:09:23,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:09:23,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:09:23,177 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:09:23,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:09:23,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:09:23,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:09:23,181 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 18:09:23,226 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:09:23,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:09:23,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:09:23,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:09:23,229 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:09:23,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:09:23,230 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:09:23,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:09:23,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:09:23,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:09:23,232 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:09:23,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:09:23,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:09:23,232 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:09:23,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:09:23,233 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:09:23,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:09:23,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:09:23,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:09:23,234 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:09:23,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:09:23,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:09:23,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:09:23,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:09:23,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:09:23,235 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:09:23,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:09:23,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:09:23,235 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:09:23,236 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:09:23,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:09:23,748 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:09:23,753 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:09:23,755 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:09:23,755 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:09:23,757 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c [2020-09-24 18:09:23,840 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c020ae7a/c8d33dda6f364ea782f46eb7234d3ab9/FLAG90eb06786 [2020-09-24 18:09:24,515 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:09:24,516 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c [2020-09-24 18:09:24,534 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c020ae7a/c8d33dda6f364ea782f46eb7234d3ab9/FLAG90eb06786 [2020-09-24 18:09:24,697 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c020ae7a/c8d33dda6f364ea782f46eb7234d3ab9 [2020-09-24 18:09:24,713 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:09:24,719 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:09:24,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:09:24,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:09:24,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:09:24,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:09:24" (1/1) ... [2020-09-24 18:09:24,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:24, skipping insertion in model container [2020-09-24 18:09:24,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:09:24" (1/1) ... [2020-09-24 18:09:24,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:09:24,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:09:25,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:09:25,360 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:09:25,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:09:25,564 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:09:25,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:25 WrapperNode [2020-09-24 18:09:25,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:09:25,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:09:25,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:09:25,566 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:09:25,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:25" (1/1) ... [2020-09-24 18:09:25,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:25" (1/1) ... [2020-09-24 18:09:25,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:25" (1/1) ... [2020-09-24 18:09:25,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:25" (1/1) ... [2020-09-24 18:09:25,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:25" (1/1) ... [2020-09-24 18:09:25,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:25" (1/1) ... [2020-09-24 18:09:25,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:25" (1/1) ... [2020-09-24 18:09:25,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:09:25,672 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:09:25,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:09:25,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:09:25,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:09:25,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:09:25,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:09:25,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:09:25,769 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:09:25,769 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:09:25,769 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:09:25,769 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:09:25,769 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:09:25,769 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:09:25,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 18:09:25,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 18:09:25,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:09:25,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:09:25,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:09:25,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:09:25,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:09:25,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:09:25,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:09:25,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:09:25,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:09:25,772 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:09:25,772 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:09:25,772 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:09:25,773 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:09:25,773 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:09:25,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:09:25,773 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:09:25,773 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:09:25,774 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:09:25,774 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:09:25,774 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:09:25,774 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 18:09:25,774 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:09:25,774 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:09:25,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:09:25,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:09:25,775 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:09:25,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 18:09:25,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 18:09:25,775 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 18:09:25,776 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:09:25,776 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:09:25,776 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:09:25,776 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:09:25,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:09:25,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:09:25,777 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:09:25,777 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:09:25,777 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:09:25,777 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:09:25,777 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:09:25,777 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:09:25,778 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:09:25,778 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 18:09:25,778 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 18:09:25,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:09:25,778 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:09:25,779 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:09:25,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:09:25,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:09:25,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:09:25,779 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:09:25,779 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:09:25,780 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:09:25,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:09:25,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:09:25,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:09:25,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:09:25,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:09:25,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:09:25,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:09:25,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:09:25,781 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:09:25,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:09:25,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:09:25,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:09:25,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:09:25,782 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:09:25,782 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:09:25,782 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:09:25,782 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:09:25,782 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:09:25,783 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:09:25,783 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:09:25,783 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:09:25,783 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:09:25,783 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:09:25,783 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:09:25,784 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 18:09:25,784 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:09:25,784 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:09:25,784 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:09:25,784 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:09:25,784 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 18:09:25,785 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:09:25,785 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 18:09:25,785 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 18:09:25,785 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:09:25,785 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:09:25,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:09:25,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:09:25,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:09:26,965 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:09:26,965 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:09:26,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:09:26 BoogieIcfgContainer [2020-09-24 18:09:26,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:09:26,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:09:26,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:09:26,979 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:09:26,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:09:24" (1/3) ... [2020-09-24 18:09:26,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aef2ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:09:26, skipping insertion in model container [2020-09-24 18:09:26,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:25" (2/3) ... [2020-09-24 18:09:26,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aef2ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:09:26, skipping insertion in model container [2020-09-24 18:09:26,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:09:26" (3/3) ... [2020-09-24 18:09:26,983 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product58.cil.c [2020-09-24 18:09:26,995 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:09:27,008 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:09:27,032 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:09:27,074 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:09:27,075 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:09:27,075 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:09:27,075 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:09:27,075 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:09:27,075 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:09:27,076 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:09:27,076 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:09:27,107 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states. [2020-09-24 18:09:27,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 18:09:27,128 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:27,129 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:09:27,130 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:27,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:27,139 INFO L82 PathProgramCache]: Analyzing trace with hash 797820518, now seen corresponding path program 1 times [2020-09-24 18:09:27,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:27,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1013998596] [2020-09-24 18:09:27,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:27,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:27,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:29,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:29,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:32,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:32,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:32,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 18:09:32,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:09:32,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-24 18:09:32,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:32,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:32,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 18:09:32,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:32,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:09:33,122 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:09:33,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:33,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:33,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:33,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:09:33,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:33,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-24 18:09:33,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:33,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:33,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:33,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:33,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:33,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:09:33,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:33,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:33,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:33,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:33,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:33,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:33,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:33,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:33,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:33,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:33,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:33,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:09:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:33,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:33,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:33,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:33,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:33,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:33,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:33,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:33,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:33,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:33,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:33,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:09:33,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:33,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:33,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:33,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:33,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:33,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 18:09:33,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:33,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:33,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:33,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:33,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:33,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:09:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:33,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:33,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:33,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:33,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:33,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:33,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:33,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:33,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:33,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:33,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:09:33,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:09:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:33,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:33,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:33,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:33,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:33,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:33,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:33,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:33,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:33,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:33,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:09:33,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 18:09:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:33,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:33,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:33,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:09:33,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:33,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:33,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:33,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:33,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:09:33,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:33,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:33,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:33,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:33,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:33,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:33,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:33,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:33,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:33,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:33,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:33,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:33,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:33,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 18:09:33,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:33,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:33,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:33,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:33,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:33,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:33,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:33,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:33,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:33,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:33,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:33,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 18:09:33,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:33,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:33,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:33,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:33,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:33,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:33,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:33,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:33,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:33,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:33,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:33,458 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:09:33,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1013998596] [2020-09-24 18:09:33,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:09:33,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:09:33,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365663849] [2020-09-24 18:09:33,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:09:33,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:09:33,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:09:33,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:09:33,493 INFO L87 Difference]: Start difference. First operand 351 states. Second operand 4 states. [2020-09-24 18:09:35,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:09:35,082 INFO L93 Difference]: Finished difference Result 563 states and 653 transitions. [2020-09-24 18:09:35,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 18:09:35,084 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-24 18:09:35,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:09:35,106 INFO L225 Difference]: With dead ends: 563 [2020-09-24 18:09:35,107 INFO L226 Difference]: Without dead ends: 348 [2020-09-24 18:09:35,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:09:35,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-09-24 18:09:35,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 300. [2020-09-24 18:09:35,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2020-09-24 18:09:35,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 325 transitions. [2020-09-24 18:09:35,298 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 325 transitions. Word has length 160 [2020-09-24 18:09:35,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:09:35,299 INFO L479 AbstractCegarLoop]: Abstraction has 300 states and 325 transitions. [2020-09-24 18:09:35,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:09:35,300 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 325 transitions. [2020-09-24 18:09:35,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 18:09:35,305 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:35,305 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:09:35,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:09:35,306 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:35,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:35,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1390258068, now seen corresponding path program 1 times [2020-09-24 18:09:35,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:35,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [597059067] [2020-09-24 18:09:35,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:35,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:35,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:35,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:37,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:37,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:40,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:40,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-24 18:09:40,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:09:40,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 18:09:40,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:40,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:40,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 18:09:40,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:09:40,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:40,684 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:09:40,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:40,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:40,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:40,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:09:40,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:40,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 18:09:40,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:40,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:40,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:40,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:40,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:40,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:09:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:40,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:40,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:40,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:40,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:40,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:40,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:40,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:40,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:40,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:40,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:40,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:09:40,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:40,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:40,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:40,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:40,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:40,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:40,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:40,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:40,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:40,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:40,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:40,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:09:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:40,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:40,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:40,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:40,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:40,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:40,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:40,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:40,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:40,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:40,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:40,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:09:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:40,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:40,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:40,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:40,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:40,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:40,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:40,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:40,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:40,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:40,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:09:40,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:09:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:40,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:40,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:40,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:40,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:40,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:40,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:40,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:40,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:40,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:40,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:40,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:09:40,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:40,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:40,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:40,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:09:40,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:40,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:40,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:40,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:40,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:09:40,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:40,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:40,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:40,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:40,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:40,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:40,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:40,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:40,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:40,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:40,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:40,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:40,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:09:40,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 18:09:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:40,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:40,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:40,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:40,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:40,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:40,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:40,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:40,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:40,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:40,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:40,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:09:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:40,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:40,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:40,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:40,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:40,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:40,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:40,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:40,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:40,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:40,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:40,981 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:09:40,982 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [597059067] [2020-09-24 18:09:40,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:09:40,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:09:40,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200718118] [2020-09-24 18:09:40,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:09:40,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:09:40,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:09:40,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:09:40,988 INFO L87 Difference]: Start difference. First operand 300 states and 325 transitions. Second operand 5 states. [2020-09-24 18:09:41,645 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:09:42,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:09:42,917 INFO L93 Difference]: Finished difference Result 488 states and 545 transitions. [2020-09-24 18:09:42,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:09:42,918 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-24 18:09:42,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:09:42,922 INFO L225 Difference]: With dead ends: 488 [2020-09-24 18:09:42,922 INFO L226 Difference]: Without dead ends: 337 [2020-09-24 18:09:42,924 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:09:42,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-09-24 18:09:42,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 290. [2020-09-24 18:09:42,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-09-24 18:09:42,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 312 transitions. [2020-09-24 18:09:42,971 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 312 transitions. Word has length 161 [2020-09-24 18:09:42,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:09:42,972 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 312 transitions. [2020-09-24 18:09:42,972 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:09:42,972 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 312 transitions. [2020-09-24 18:09:42,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-24 18:09:42,975 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:42,975 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:09:42,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:09:42,976 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:42,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:42,976 INFO L82 PathProgramCache]: Analyzing trace with hash -678353695, now seen corresponding path program 1 times [2020-09-24 18:09:42,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:42,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456973601] [2020-09-24 18:09:42,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:43,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:43,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:43,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:45,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:48,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:48,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-24 18:09:48,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:09:48,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-09-24 18:09:48,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:48,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:48,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 18:09:48,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 18:09:48,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:48,384 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:09:48,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:48,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:48,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:48,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:09:48,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:48,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 18:09:48,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:48,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:48,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:48,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:48,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:48,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:09:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:48,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:48,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:48,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:48,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:48,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:48,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:48,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:48,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:48,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:48,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:48,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:09:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:48,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:48,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:48,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:48,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:48,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:48,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:48,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:48,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:48,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:48,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:48,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:09:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:48,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:48,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:48,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:48,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:48,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:48,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:48,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:48,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:48,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:48,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:48,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:09:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:48,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:48,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:48,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:48,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:48,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:48,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:48,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:48,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:48,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:48,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:48,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:09:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:48,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:48,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:48,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:48,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:48,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:48,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:48,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:48,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:48,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:48,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:48,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 18:09:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:48,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:48,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:48,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:48,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:48,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:48,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:48,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:48,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:48,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:09:48,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:48,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:09:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:48,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:48,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:48,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:09:48,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:48,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:48,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:48,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:48,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:48,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 18:09:48,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:48,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:48,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:48,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:48,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:48,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:48,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:48,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:48,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:48,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:48,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:48,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:48,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 18:09:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:48,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:48,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:48,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:48,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:48,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:48,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:48,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:48,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:48,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:48,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:48,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-24 18:09:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:48,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:48,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:48,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:48,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:48,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:48,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:48,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:48,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:48,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:48,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:48,624 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:09:48,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456973601] [2020-09-24 18:09:48,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:09:48,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:09:48,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028470104] [2020-09-24 18:09:48,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:09:48,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:09:48,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:09:48,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:09:48,628 INFO L87 Difference]: Start difference. First operand 290 states and 312 transitions. Second operand 6 states. [2020-09-24 18:09:49,161 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:09:50,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:09:50,357 INFO L93 Difference]: Finished difference Result 535 states and 610 transitions. [2020-09-24 18:09:50,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 18:09:50,359 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-24 18:09:50,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:09:50,363 INFO L225 Difference]: With dead ends: 535 [2020-09-24 18:09:50,363 INFO L226 Difference]: Without dead ends: 360 [2020-09-24 18:09:50,364 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:09:50,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-09-24 18:09:50,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 290. [2020-09-24 18:09:50,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-09-24 18:09:50,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 311 transitions. [2020-09-24 18:09:50,407 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 311 transitions. Word has length 174 [2020-09-24 18:09:50,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:09:50,408 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 311 transitions. [2020-09-24 18:09:50,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:09:50,408 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 311 transitions. [2020-09-24 18:09:50,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-24 18:09:50,411 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:50,411 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:09:50,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:09:50,412 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:50,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:50,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1021606715, now seen corresponding path program 1 times [2020-09-24 18:09:50,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:50,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1235493819] [2020-09-24 18:09:50,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:50,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:50,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:51,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:52,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:53,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:55,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:55,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:55,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-09-24 18:09:55,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 18:09:55,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-24 18:09:55,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:55,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:09:55,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-09-24 18:09:55,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:09:55,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:55,799 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:09:55,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:55,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:55,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:55,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:55,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:09:55,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:55,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 18:09:55,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:55,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:55,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:55,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:55,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:55,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:09:55,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:55,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:55,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:55,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:55,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:55,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:55,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:55,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:55,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:55,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:55,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:55,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:09:55,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:55,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:55,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:55,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:55,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:55,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:55,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:55,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:55,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:55,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:55,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:55,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:09:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:55,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:55,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:55,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:55,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:55,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:55,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:55,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:55,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:55,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:55,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:55,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:09:55,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:55,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:55,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:55,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:55,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:55,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:55,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:55,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:55,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:55,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:55,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:56,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:09:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:56,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:56,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:56,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:56,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:56,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:56,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:56,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:56,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:56,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:56,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:56,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 18:09:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:56,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:56,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:56,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:56,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:56,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:56,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:56,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:56,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:56,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:56,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:56,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:09:56,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:56,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:56,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:56,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:09:56,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:56,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:56,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:56,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:56,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:56,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:56,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:56,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:56,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:56,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:56,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:56,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:56,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:56,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:56,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:56,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:56,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:56,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:56,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:09:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:56,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:56,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:56,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 18:09:56,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:56,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:09:56,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:56,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:09:56,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 18:09:56,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:09:56,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:56,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:09:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:56,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:56,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:56,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 18:09:56,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:56,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:09:56,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:56,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:09:56,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 18:09:56,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 18:09:56,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:56,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:09:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:56,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:56,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:56,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:56,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:56,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:56,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:56,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:56,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:56,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:09:56,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:56,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 18:09:56,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:56,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:56,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:56,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:56,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:56,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:56,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:56,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:56,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:56,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:56,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:56,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 18:09:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:56,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:56,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:56,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:56,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:56,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:56,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:56,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:56,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:56,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:56,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:56,309 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:09:56,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1235493819] [2020-09-24 18:09:56,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:09:56,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 18:09:56,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137636314] [2020-09-24 18:09:56,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 18:09:56,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:09:56,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 18:09:56,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:09:56,313 INFO L87 Difference]: Start difference. First operand 290 states and 311 transitions. Second operand 8 states. [2020-09-24 18:09:57,083 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:09:59,446 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:10:00,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:10:00,335 INFO L93 Difference]: Finished difference Result 724 states and 855 transitions. [2020-09-24 18:10:00,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 18:10:00,336 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 187 [2020-09-24 18:10:00,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:10:00,341 INFO L225 Difference]: With dead ends: 724 [2020-09-24 18:10:00,341 INFO L226 Difference]: Without dead ends: 549 [2020-09-24 18:10:00,343 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-09-24 18:10:00,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2020-09-24 18:10:00,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 411. [2020-09-24 18:10:00,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-09-24 18:10:00,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 444 transitions. [2020-09-24 18:10:00,405 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 444 transitions. Word has length 187 [2020-09-24 18:10:00,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:10:00,405 INFO L479 AbstractCegarLoop]: Abstraction has 411 states and 444 transitions. [2020-09-24 18:10:00,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 18:10:00,405 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 444 transitions. [2020-09-24 18:10:00,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-24 18:10:00,408 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:10:00,409 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:10:00,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:10:00,409 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:10:00,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:10:00,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1622480709, now seen corresponding path program 1 times [2020-09-24 18:10:00,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:10:00,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1332623195] [2020-09-24 18:10:00,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:10:00,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:00,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:00,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:00,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:01,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:05,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:05,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:05,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-24 18:10:05,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:10:05,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 18:10:05,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:05,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:10:05,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-09-24 18:10:05,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 18:10:05,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:05,807 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:10:05,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:10:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:05,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:05,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:05,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:10:05,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:05,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-24 18:10:05,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:05,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:05,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:05,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:05,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:05,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:10:05,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:05,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:05,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:05,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:05,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:05,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:05,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:05,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:05,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:05,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:05,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:05,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:10:05,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:05,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:05,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:05,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:05,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:05,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:05,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:05,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:05,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:05,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:05,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:05,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:10:05,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:05,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:05,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:05,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:05,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:05,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:10:05,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:05,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:05,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:05,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:05,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:05,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:10:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:05,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:05,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:05,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:05,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:05,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:05,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:05,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:05,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:05,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:05,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:06,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:10:06,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:06,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:06,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:06,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:10:06,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:06,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:06,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:06,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:06,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:06,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:06,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:06,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 18:10:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:06,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:06,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:06,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:10:06,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:06,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:06,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:06,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:06,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:06,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:06,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:06,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:10:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:06,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:06,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:06,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:10:06,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:06,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:06,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:06,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:06,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:06,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:06,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:06,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:10:06,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:06,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:06,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:06,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:06,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:06,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:06,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:06,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:06,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:06,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:06,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:06,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:10:06,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:06,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:06,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:06,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:06,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 18:10:06,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:10:06,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 18:10:06,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:06,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:06,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:06,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:10:06,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:06,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:10:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:06,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:06,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:06,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 18:10:06,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:06,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 18:10:06,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:06,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:06,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:06,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:10:06,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:06,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:10:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:06,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:06,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:06,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:10:06,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:06,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:10:06,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:06,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:06,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:06,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 18:10:06,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:06,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:10:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:06,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:06,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:06,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:10:06,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:06,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:10:06,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:06,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:06,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:06,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:06,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:06,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:10:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:06,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:06,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:06,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:06,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:06,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:06,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:06,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:06,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:06,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:10:06,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:06,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 18:10:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:06,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:06,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:06,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:06,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:06,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:10:06,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:06,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:06,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:06,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:10:06,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:06,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-24 18:10:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:06,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:06,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:06,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:06,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:06,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:10:06,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:06,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:10:06,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:06,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:10:06,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:06,274 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 18:10:06,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1332623195] [2020-09-24 18:10:06,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:10:06,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 18:10:06,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263656504] [2020-09-24 18:10:06,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 18:10:06,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:10:06,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 18:10:06,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:10:06,276 INFO L87 Difference]: Start difference. First operand 411 states and 444 transitions. Second operand 11 states. [2020-09-24 18:10:06,890 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:10:08,130 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-24 18:10:08,754 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-24 18:10:10,164 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:10:10,493 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 18:10:10,869 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:10:11,466 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:10:11,788 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:10:12,104 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191